Writer Brian Bendis has claimed that current Marvel event Siege is essential reading for Avengers film fans.

In an interview with MTV, the scribe said that the plotline will reunite the classic Avengers trinity of Thor, Captain America and Iron Man, providing readers with a taster of what is to come when the superhero team appears on the big screen in 2011.

"What's exciting is that these characters have not been playing together since well before I took over the Avengers," he said.

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"This is something you really haven't seen in a long, long time - and for some readers, they've never seen it. Some of the younger readers are still waiting to see what that feels like."

Bendis also reiterated that the events of Siege will dramatically affect the Marvel Universe's status quo.

"I promise the Avengers and the Marvel Universe will change dramatically... and never be the same again," he added. "Sorry, I had to say it. I'm contractually obligated to say that."

Siege #1, written by Bendis and illustrated by Olivier Coipel and Mark Morales, is available in stores now.